KTM 350 SX-F 2020

Produktinfo

SHREDDING WITH NIMBLE AGILITY

The KTM 350 SX-F continues to deliver a dominant mix of horsepower and agility. It has an exceptional power-to-weight ratio with torque similar to that of a 450, without losing its 250-like agility. When you’re looking for more than one advantage, this powerful, lightweight racer combines all your needs into one dominant package with serious championship pedigree to back it up.

Motor og eksos

Motor og Eksos

4-strokes have taken motocross to unthinkable new extremes in a playground where KTM is the dominant force. Lighter and more compact than ever thought possible, these well-balanced engineering masterpieces deliver class-leading power in the most dynamic way. Straight from the showroom floor, KTM 4-strokes offer READY TO RACE performance of the highest caliber.

TRANSMISSION

The KTM 350 SX-F is fitted with a robust 5-speed transmission. The gear ratios were carried over from its predecessor and are perfectly suited for the MX track. Another highlight of the transmission is the “no dirt” gear shifter. Similar to the footpeg design, it prevents the build-up of dirt and ensures the next gear […]

HANDLEBAR MAP SELECT SWITCH

Within easy reach of the left grip on all four-stroke models, is a multifunctional handlebar map switch, which features the innovative control functions; traction control; launch control and alternative power curves (standard <-> advanced). The TRACTION CONTROL is a unique feature that guarantees more efficient traction and better control when accelerating the bike, especially in […]

EXHAUST

When it comes to power delivery and performance, the exhaust on all 4-stroke models plays a key role and packs a punch that is hard to beat. It features a model specific header pipe with an advanced resonator called FDH (Flow Design Header), which is a small chamber around the pipe. The design allows the […]

ENGINE MANAGEMENT SYSTEM

The state-of-the-art KEIHIN Engine Management System, with electronic fuel injection, features a 44 mm throttle body. The injector position guarantees optimal atomization of the fuel and air on the way to the combustion chamber, resulting in instant response and maximum performance when opening the throttle. There are also separate systems for cold starting and idle […]

ENGINE

The engine of the 2020 KTM 350 SX-F is neatly arranged in a compact and light (26.6kg) construction. It features an innovative clutch system; perfectly geared, durable transmission, and a lightweight DOHC (double overheard camshaft) cylinder head, which all contribute to making it an extremely impressive engine. It also features a new, stronger oil pump […]

E-STARTER

The standard electric starter on the KTM 350 SX-F uses a proven starter drive and a strong starter motor made by MITSUBA. It provides quick and reliable starting, saving you precious time and energy when you need it most, always ensuring the strongest possible race finish.

CYLINDER HEAD

The cylinder head on the KTM 350 SX-F is the gateway to its excellent power. It features two overhead camshafts with friction-optimized super-fine surfaces, connected to DLC coated finger followers that activate four lightweight titanium valves (intake 36.3 mm, exhaust 29.1 mm). KTM engineers have maximized the flow rate, delivering an optimal power band, with […]

CYLINDER AND PISTON

The 88 mm bore cylinder houses a lightweight, forged, bridged, box-type piston, made to the highest standards by CP. It has an extremely rigid structure and features a unique crown shape to suit the high-compression combustion chamber. The compression ratio is at 14:1 and thanks to the combination of low oscillating masses, the engine displays […]

CRANKSHAFT

The KTM 350 SX-F’s crankshaft features a stiff design and utilizes a short, lightweight connecting rod, contributing to the incredibly dynamic and efficient power delivery. The big end bearing features two force-fitted bearing shells, which run directly on the crank pin. This design is a prerequisite for the extremely high engine speed levels and the […]

CRANKCASES AND ENGINE COVERS

The compact engine cases are manufactured using a high pressure die-cast production process that helps with weight reduction, while retaining strength and durability. The design allows for optimal shaft arrangements close to the center of gravity, resulting in ideal mass centralization and easier ride-ability. The engine covers feature a smart surface structure that reduces wear […]

COOLING

Maintaining the optimal engine temperature is crucial to ensuring consistent horsepower throughout the ride. The KTM 350 SX-F features radiators which are positioned for a lower the center of gravity. Their design matches the shrouds perfectly and offers a great slim feel to the ergonomics. By using CFD technology (computational fluid dynamics) together with a […]

CLUTCH

The DS (diaphragm steel) clutch, literally puts the control back in the hands of the rider. It features a durable, one-piece clutch basket and primary gear, made of high-strength billet steel, guaranteeing unbeatable reliability. It is fitted with extremely heat-resistant steel carrier friction discs, which are pre-tensioned by means of a diaphragm spring, ensuring the […]

BALANCER SHAFT

In order to balance the mass-forces the KTM 350 SX-F produces, the engine is fitted with a multifunctional counter balance shaft. It effectively reduces vibration, while driving the water pump and timing chain.

Chassi

Chassi

The KTM 350 SX-F has a lightweight, high-tech steel frame, carried over from the 2019 model. It plays an integral role in the bike’s renowned maneuverability, while also providing accurate rider feedback. Its refined flex characteristics ensure the bike soaks up those big hits while still delivering excellent agility and high-speed stability. The chassis also features additional innovative elements, like “no dirt” footpegs and brackets for mounting an optional composite skid plate. For 2020, the suspension features improved damping characteristics. The reworked settings offer a slightly softer, more comfortable feel that, together with the dynamic, performance-oriented chassis, contributes to an intuitive, high-performance ride like no other.

WHEELS

KTM uses lightweight, CNC-machined hubs and high-end Excel rims on all SX models, guaranteeing maximum stability and minimum weight. The aluminum spoke nipples feature a design that conveniently reduces the frequency with which the spokes need to be tightened. The wheels are fitted with the latest DUNLOP Geomax MX 3S tires, delivering maximum grip and […]

TRIPLE CLAMP

All KTM SX models feature top quality, CNC-machined triple clamps which have become a KTM trademark. The triple clamp has a precisely calculated stiffness and offset (22 mm offset for all models) to match the flex characteristics of the frame and fork. The result is a front end that all works in perfect harmony, contributing […]

SWINGARM

The KTM 350 SX-F’s one-piece swingarm, is manufactured using a gravity die-cast production process, for exceptional strength at the lowest possible weight. It offers a wide range of adjustment for the rear wheel, allowing for a shorter wheelbase on tighter twisty tracks, or a longer wheelbase for greater stability on longer, more choppy tracks. The […]

REAR SUSPENSION

All full-size KTM SX models feature a WP XACT monoshock, which has been developed to work as a complete unit with the entire frame and swingarm architecture, as well as the linkage system and the WP XACT AER fork. It features high-quality machined and anodized components, which add a touch of class and give it […]

FUEL TANK

All models in the KTM SX range are fitted with lightweight polyethylene fuel tanks. The shape of the fuel tank allows for slim ergonomics without compromise to the 7 liter fuel capacity. The filler cap has an inside thread that makes for easy and reliable closure.

FRONT SUSPENSION

All full-size KTM SX models are fitted with the super-lightweight WP XACT fork with AER technology and feature updated settings for 2020. It is a 48 mm USD air-sprung fork with separate functions in each fork leg, with damping functions on the right side and the air spring on the left. The left leg features […]

FRAME

As with the entire SX range, the frame on the KTM 350 SX-F is professionally crafted from hydro-formed chromium molybdenum steel tubes that are robot welded to ensure the highest levels of consistent quality. The carefully calculated stiffness of the frame delivers responsive handling and works perfectly with the suspension to provide excellent agility and […]

BRAKES

High-tech BREMBO brakes have always been standard equipment on all KTM motocross bikes. Combined with lightweight wave discs, the renowned system provides the highest level of braking efficiency, enabling you to out-brake the competition.

AIRBOX

The airbox on the KTM 350 SX-F ensures optimal flow dynamics, and together with its intake snorkels, leads to maximum power and quick throttle response. Despite the obvious performance advantages, the design also offers maximum protection against soiling of the air filter. The large Twin-Air air filter is mounted on a cleverly designed stiff cage […]

Ergonomi og komfort

Ergonomi og komfort

A rider’s ability to work together with the bike depends on how quickly and easily he can maneuver around his motorcycle. In order to ensure optimal rider control, KTM has focused extensively on the best ergonomics for high-level performance. The neutral riding position is comfortable and, through various handlebar positions, can also be adjusted to suit every rider and condition. A rider’s main interaction with the motorcycle comes through the bodywork, seat, footpegs and handlebars and these crucial contact points play a vital role in a rider’s ability to maintain balance and control. When it comes to ergonomics, KTM chose to use only the best quality products, ensuring the KTM 350 SX-F, as well as the entire SX range, provide unrivalled feeling and control out on the track.

SEAT

All KTM SX models feature a seat that perfectly matches the range’s dynamic performance-oriented ergonomics. The seat cover features silicone strips that provide better feel and grip for the rider. The seat is conveniently fixed to the bike using one long, lateral screw, making it safe and easy to handle.

HANDLEBAR

All full-size KTM SX models are equipped with the same high-strength aluminum tapered handlebar, made by NEKEN. The handlebar is fixed in rubber damped mountings, which allow for two different positions. The handlebars come standard with an ODI vulcanized grip on the right side and a comfortable ODI lock-on grip, which does not require any […]

FOOTPEGS

Sophisticated “no dirt” footpegs prevent clogging of the footpeg pivot, even when digging in deep ruts. Looking for a higher riding position? Then just mount the footpegs of the 2019 EXC models, which are 6mm higher than the SX versions.

Bodywork og dekaler

Bodywork og dekaler

The KTM 350 SX-F is a standout performer that has made a huge impact on the industry. The contributions from KTM factory riders, as well as KTM R&D and Kiska Design, have helped to shape the bodywork and the success of this radical machine. The design that features across all 2020 SX models, achieves complete harmony between rider and bike, down to the finest details. The main goal was to provide the perfect contact points for the rider to enjoy maximum freedom of movement and improved handling. The I-beam design for the front and rear fenders are prime examples of the intelligent design that appears in every element of the bodywork, guaranteeing maximum stability at the lowest possible weight.

DECALS

Simply riding a KTM 350 SX-F attracts the attention of onlookers, but the new inlay graphics definitely makes them turn for a second look.

Programvare og elektronikk

Programvare og elektronikk

The KTM 350 SX-F is a revolutionary motorcycle at the forefront of progression in motocross. It features innovative electronics that help to refine its incredible power-to-weight ratio, while maximizing power delivery. Activated by a multifunctional handlebar map switch, the rider has instant access to traction control, launch control and even alternative power curves. KTM’s engineers have spent many hours pushing the boundaries of performance, making electronics a necessary innovation that ensures the most effective power delivery. KTM SX-F models also have the advantages of a proven electric starter. Just one simple push of a button and you’re READY TO RACE.

TRACTION CONTROL

TRACTION CONTROL is a highly beneficial feature that guarantees more efficient traction and better control of the bike when accelerating on wet or slippery hard pack surfaces. It can be activated by the handlebar map switch during riding.

LAUNCH CONTROL

By pushing both buttons on the map switch, the rider can activate LAUNCH CONTROL, which ensures a more efficient launch out of the start gate. It reduces the maximum engine speed for the very first moment of the start to give better control. The EFI control lamp mounted on the upper triple clamps flashes when […]

HANDLEBAR MAP SELECT SWITCH

With one touch of a button, the map switch gives the rider the chance to select between a standard map setting and a more aggressive map for loamy, high grip dirt conditions. This is particularly useful for changing track conditions or for a rider that is looking for more control as he begins to fatigue.

BATTERY & WIRING HARNESS

All SX-F models feature a capable, super lightweight 2 Ah Lithium-Ion starter battery, ensuring quick and effective starting of the engine, especially in cold weather conditions. The voltage regulator and condenser, as well as all the electrical components are packaged in a common area below the seat, making the entire system compact and reliable.

Tekniske detaljer

TECH DETAILS

Engine
Design
1-cylinder, 4-stroke engine
Displacement
349.7 cm³
Bore
88 mm
Stroke
57.5 mm
Starter
Electric starter
Transmission
5-speed
Clutch
Wet, DDS multi-disc clutch, Brembo hydraulics
EMS
Keihin EMS
Chassis
Frame design
25CrMo4 steel central-tube frame
Front suspension
WP-USD, AER 48, Ø 48 mm
Rear suspension
WP shock absorber with linkage
Suspension travel (front)
310 mm
Suspension travel (rear)
300 mm
Front brake
Disc brake
Rear brake
Disc brake
Front brake disc diameter
260 mm
Rear brake disc diameter
220 mm
Chain
5/8 x 1/4″
Steering head angle
63.9 °
Ground clearance
370 mm
Seat height
950 mm
Tank capacity (approx.)
7 l
Weight READY TO RACE (without fuel)
99.5 kg